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<a name="gst-plugins-good-plugins-vp8dec"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-vp8dec.top_of_page"></a>vp8dec</span></h2>
<p>vp8dec</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8dec.html#GstVP8Dec--deblocking-level" title="The “deblocking-level” property">deblocking-level</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8dec.html#GstVP8Dec--noise-level" title="The “noise-level” property">noise-level</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8dec.html#GstVP8Dec--post-processing" title="The “post-processing” property">post-processing</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstVP8DecPostProcessingFlags</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8dec.html#GstVP8Dec--post-processing-flags" title="The “post-processing-flags” property">post-processing-flags</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-vp8dec.html#GstVP8Dec--threads" title="The “threads” property">threads</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstVP8Dec"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-good-plugins-vp8dec.html#GstVP8Dec-struct" title="struct GstVP8Dec">GstVP8Dec</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstVideoDecoder.html#GstVideoDecoder-struct">GstVideoDecoder</a>
                    <span class="lineart">╰──</span> GstVPXDec
                        <span class="lineart">╰──</span> GstVP8Dec
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.description"></a><h2>Description</h2>
<p>This element decodes VP8 streams into raw video.</p>
<a class="ulink" href="http://www.webmproject.org" target="_top">VP8</a> is a royalty-free
<p>video codec maintained by <a class="ulink" href="http://www.google.com/" target="_top">Google
</a>. It's the successor of On2 VP3, which was the base of the
Theora video codec.</p>
<div class="refsect2">
<a name="id-1.2.271.7.5"></a><h3>Example pipeline</h3>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v filesrc location<span class="gtkdoc opt">=</span>videotestsrc<span class="gtkdoc opt">.</span>webm <span class="gtkdoc opt">!</span> matroskademux <span class="gtkdoc opt">!</span> vp8dec <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> videoscale <span class="gtkdoc opt">!</span> autovideosink</pre></td>
      </tr>
    </tbody>
  </table>
</div>
 This example pipeline will decode a WebM stream and decodes the VP8 video.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.271.7.6.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
            <a class="link" href="gst-plugins-good-plugins-plugin-vpx.html#plugin-vpx">vpx</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>David Schleef &lt;ds@entropywave.com&gt;, Sebastian Dröge &lt;sebastian.droege@collabora.co.uk&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Codec/Decoder/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.271.7.6.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-vp8</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>video/x-raw, format=(string)I420, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstVP8Dec-struct"></a><h3>struct GstVP8Dec</h3>
<pre class="programlisting">struct GstVP8Dec;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstVP8Dec--deblocking-level"></a><h3>The <code class="literal">“deblocking-level”</code> property</h3>
<pre class="programlisting">  “deblocking-level”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Deblocking level.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &lt;= 16</p>
<p>Default value: 4</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Dec--noise-level"></a><h3>The <code class="literal">“noise-level”</code> property</h3>
<pre class="programlisting">  “noise-level”              <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Noise level.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &lt;= 16</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Dec--post-processing"></a><h3>The <code class="literal">“post-processing”</code> property</h3>
<pre class="programlisting">  “post-processing”          <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Enable post processing.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Dec--post-processing-flags"></a><h3>The <code class="literal">“post-processing-flags”</code> property</h3>
<pre class="programlisting">  “post-processing-flags”    <span class="type">GstVP8DecPostProcessingFlags</span></pre>
<p>Flags to control post processing.</p>
<p>Flags: Read / Write</p>
<p>Default value: Deblock|Demacroblock|Multi-frame quality enhancement</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVP8Dec--threads"></a><h3>The <code class="literal">“threads”</code> property</h3>
<pre class="programlisting">  “threads”                  <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Maximum number of decoding threads.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [1,16]</p>
<p>Default value: 1</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-vp8dec.see-also"></a><h2>See Also</h2>
<p>vp8enc, matroskademux</p>
</div>
</div>
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